Afghan National Army soldiers with Artillery Brigade, 215th Corps prepare to conduct a notional firing exercise using a 122mm howitzer D-30 at Camp Shorabak, Afghanistan, Oct. 21, 2017. U.S. Marine advisors with Task Force Southwest are instructing an eight-week artillery course to more than 20 ANA soldiers with the brigade. The students are all forward observers, artillery crewmen or part of a fire direction control team, and are learning how to properly employ artillery to support combat missions throughout Helmand province. (U.S. Marine Corps photo by Sgt. Lucas Hopkins) - Afghan National Army soldiers with Artillery Brigade, 215th Corps prepare to conduct a notional firing exercise using a 122mm howitzer D-30 at Camp Shorabak, Afghanistan, Oct. 21, 2017. U.S. Marine advisors with Task Force Southwest are instructing an eight-week artillery course to more than 20 ANA soldiers with the brigade. The students are all forward observers, artillery crewmen or part of a fire direction control team, and are learning how to properly employ artillery to support combat missions throughout Helmand province. (U.S. Marine Corps photo by Sgt. Lucas Hopkins)